Binder drivinc mechanism



June 6, 1933.

L. A. PARADISE ET AL BINDER DRIVING MECHANISM Filed 001;. 21. 1929 e m M W WIT/VEJJ Patented June 6, 1933 uNiTE n STATES- PATENT OFFICE LOUIS A. PARADISE AND ELLSWOR'IH TQJ'OI-INSON, OF MOLINE, ILLINOIS, ASSIGNORS TO DEERE & COMPANY, OF MOLINE, ILLINOIS, A CORPORATION OF ILLINOIS BINDER DRIVING MECHANISM Application filed October 21, 1929. Serial 1%. 401,345. r

This invention relates to an improvement in binders and more particularly to a slip clutch. of improved construction which is adapted to drive the binder head mechanism in lieu of the positive. drive sprockets heretofore employed.

' In binders of the present day type which have been suitably designed to be drawn by a tractor, it has been found desirable to provide some means capable of driving the binder under ordinary load, and yet which will yield in the event that the binder head should become overloaded.

The object of our invention has been to devise such a means by providing a slip clutch between the main drive shaft of the binder and the drive shaft of the binder head, capable of safe-guarding the binder head from injury when it is subjected to an overload. The best and most practical location of the slip clutch is 011 the binder head drive shaft, although it might also be located on the main drive shaft of the binder.

In placing the slip clutch on the binder head shaft another problem is presented due to the binder head being shiftable longitudinally over a considerable distance in order to accommodate long or short grain.

To overcome this difficulty we have designed the clutch so that one of its members is in the form of a spindle and is journaled in a bearing secured to the binder frame, this same spindle member having a square central boring which is adapted to receive the square drive shaft of v the binder head. Such a construction will allow endwise movement of the binder. head shaft and assure continued rotation thereof while it is being driven thru the clutch.

. Another feature of cOmmercialand practical value is the simplicity of installation. The clutch is an independent unit, completelv assembled apart from the binder, which on installation need only he slipped over the square binder head shaft into its frame bearing, and which is secured in place by means of a collar and set screw. This affords the convenience of a quick and simple removal of the clutch from the bindershaft when repairs or replacements are necessary, in view of the fact that the clutch need not be disassembled while on the binder. The manner in which the above is accomplished will be more clearly pointed out hereinafter.

The preferred construction in which the above improvements reside will now be described in connection with the accompanying drawing wherein:

Fig. 1 is a fragmentary perspective rear view of a portion of the binder showing the location of the slip clutch;

Fig. 2 is an end elevation of the slip clutch;

Fig. 3 is a cross-sectional view of the slip clupch taken along the line 3-3 of Fig. 2; anc

Fig. 4 is a cross-sectional view taken along the line 4 1 of Fig. 3, illustrating the frame bearing which supports the slip clutch and binder head drive shaft.

Referring to Fig. 1, the binder head and its associated mechanisms driven by means of the slip clutch briefly includes the following; a knotting mechanism 10, binding table 11, packers 12.13 and a needle 14, all of which are slidably supported on the frame of the binder. A shaft 15 slidably passing thru an opening 16 in the rear binder frame member 17 and over a roller (not shown) carried by a front binder frame member, is

utilized to support the lower end of the binder head and provides a means for shifting the latter. The binder head drive comprises a square shaft 18 which extends lon-' gitudinally of the machine underneath the binder table 11, and which hasa clutch connection withthe lrnotting mechanism 1.0 at the front end of the machine. The binder head drive shaft 18 is driven from the main binder shaft 19 by means of the chain 20 engaging the sprocket 21 on the main binder shaft 19 and the sprocket 22 which is secured to one of the members of the slip clutch 23 coacting with thebinder head drive shaft 18. y The slip clutch I 23 comprises a central clutch member 2 1 having a longitudinally extending spindle portion 25 and an out wardly extending flanged portion 26, the

latter providing a shoulder 27 asa beatingsurface for the sprocket 22, which is in the form of a ring or annulus. The flanged portion 26 of the member 24 also provides a flat surface 28 against which the face 22a of the sprocket 22 may abut and be held against lateral movement in that direction.

To the opposite face of the sprocket 22 a hardened serrated ring 29 is fastened by means of the rivets 30. The heads of the rivets are countersunk in the ring 29 to clear the serrations. The serrations of the ring 29 are adapted to engage companion serrations carried by another ring-shaped member 31. The serrations in member 31 yieldingly engage the serrations in member 29 by means of the springs 32 encircling the through bolts 33. The bolts 33 pass through longitudinal openings 34 in member 24 and through corresponding openings 35 in the ring-shaped member 31, and the spring 32 is held between the crown nuts 36 and bosses 31a of the member 31. In this manner the springs assert their pressure against member 31 and thus tend to keep the serrations of the member 31 tightly engaged with the serrations of member 29 for transmitting a normal driving torque. In order to change the spring pressure the crown nuts 36 can be tightened or loosened whichever the case may be.

The manner in which the slip clutch 23 is installed and utilized in driving the binder head drive shaft 18 is an important feature of the construction. Abearing 40 is bolted to the frame member 17 and is adapted to receivethe spindle portion 25 of member 24. The spindle 25 has been provided with a square or polygonal axial boring 25a for the reception of the square or polygonal. binder head driving shaft 18, providing a bearing therefor. To accommodate a certain amount of lateral play of the shaft 18, the boring 25a is taperingly enlarged at each end as at 25?), Fig. 3. 'The slip clutch having been previously assembled is pushed over the end of the shaft 18, which passes thru the axial boring 25a until the spindle 25 is lodgrd within the bearing sleeve 40'. The spindle 25 is of such a length that when the bearing sleeve '40 abuts the face of the'member 24, a portion of the spindle will extend beyond the bearing sleeve and this extended portion provides a seat for the reception of a collar or retaining ring 41, secured to the spindle by means of the set screw 42. From this it is seen that all that is necessary to remove the slip clutch 23 for repairs or replacements is to loosen the set screw 42 and remove the retaining collar 41.

In the event of an overload on the binder head the clutch will automatically slip so as to prevent further rotation of the binder head drive shaft. Normally the drive of the binder head shaft will be thru the chain 20 from the main binder shaft to the sprock coacting clutch engaging et 22 of the slip clutch 23; then through the ring 29 to the ring-shaped member 31 by means of the serrations carried by each, and from the member 31 the power will be transmitted through the bolts 33 to the central clutch member 24 which will rotate the square shaft 18 by virtue of its axial square boring 25a, and consequently operate the binder head mechanism. .If the torque transmitted through the clutch should tend to exceed a predetermined maximum, slippage will occur between the serrations on the two ring members 29 and 31. The sprocket 22 Will still be driven by the chain 20 and likewise the serrated ring 29, but the other members of the clutch will not be able to turn in view of their relationship to one another and to the square shaft 18, so the ring-shaped member 31 will be forced outwardly against the springs 32 as the serrations on member 31 are forced out of the corresponding serrations carried by the ring 29 as it rotates with the sprocket 22. In this manner no harm will result to the binder head mechanism nor to any other member associated with the binder head mechanism. It will be noted that the sprocket 22 is not shifted from the driving plane of the chain 20 by relative slippage between the clutching serrations. The shaft 18 is always free to slide endwise in the clutch to accommodate adjustments of the binding head, and the shaft can also angle considerably without binding the clutch or its drive to the shaft.

Although we have illustrated and described what we regard as the preferred embodiment of our invention, we do not wish to be limited to the details of such disclosure, except insofar as they may be recited on the appended claims.

What we claim is:

1. The combination with a binder having a shaft, of a slip clutch thereon comprising coacting clutch engaging means, one of said means having a spindle cooperating with said shaft and extending therealong, means on said binder for supporting said clutch, and means adapted to retain said clutch in said supporting means.

2. The combination with an agricultural implement having a shaft, of a slip clutch thereon comprising coacting clutch engaging means, one of said means having a spindle cooperating with said shaft and extending thcrealong, means on said agricultural implement for supporting said clutch comprising a bearing, and means adapted to retain said clutch in said bearing supporting means.

3. The combination with a shaft, of a. slip clutch thereon cemprisii means one of said means having a spindle cooperating with said shaft and extending therealong, means on said binder for supporting said clutch a binder having i said bearingsupporting means.

4. The combination with a binder having a shaft, of a slip clutch thereon comprising coacting clutch engagingmeans, one of said means having a rotatable spindle cooperating with said shaft andextending therealong, stationary means on said binder for supporting said clutch by means of said rotatable spindle, and means adapted to retain said rotatable spindle in said stationary means.

5. The combination with a binder having a shaft, of a slip clutch thereon comprising coacting clutch engagingmeans one of said means having a rotatable spindle cooperatingwith said shaft and extending therealong, stationary means on said binder for supporting said clutch by means of said rotatable spindle, said rotatable spindle being adapted to form a bearing support for the aforesaid shaft, and meansadapted to retain said rotatable spindle in said stationary means.

6. The combination with an agricultural implement having a square shaft, of a slip clutch thereon comprising coacting clutch engaging means, one of said means having a" rotatable spindle with a square axial boring cooperating with said square shaft and extending therealong, stationary means on said agricultural implement for supporting said clutch by means of said rotatable spindle,

and means adapted to retain said rotatable spindle insaidstatlonary means. 7. The combination wlth a binder having a shiftable square shaft, of a slip clutch thereon comprising coacting clutch engaging means, one of said means having a spindle with a square axial boring engaging said square shaft and extending therealong, stationary means comprising a bearing on said binder for supporting said clutch by means of said spindle, and means cooperating with said spindle and with said bearing to prevent lateral movement of said clutch when said square shaft is shifted laterally. 8. The combination with a binder having a binder head mechanism and a binder head drive shaft, of means comprising a bearing sleeve for supporting a clutch having a spindie extending from one of the clutch members engaging said binder head drive shaft, and means on said spindle adapted to retain said spindle insaid bearingsleeva 9. The combination with a binder having a shaft, of a slip clutch thereon comprising coacting clutch engaging means, one of sald means having a spindle cooperating with said shaft and extending therealong, bearing means mounted on said binder for supporting said clutch by me s of said spindle, said bear-ing means adapted to abut one face of said clutch, said spindle projecting be *ond said bearing means, and means comprising. a collar adapted to be secured to said portion of the spindle which projects beyond said bearing means for retainingsaid clutch in said bearin r 10. The combination with a binder having a binder head mechanism shiftably mounted on the binder frame, a main drive shaft, and a driven shaft adapted to drive said binder head and capable of shifting therewith, of a slip clutch coacting with said driven shaft, said driven shaft being operatively connected with said main drive shaft through said slip clutch, and means for pre:

venting said slip clutch from moving with ing with said driven shaft when the binder head is shifted. p

12. The combination with a binder having a shaft, of a slip clutch thereon comprising a central clutch member engaging said sh aft, a sprocket wheel disposed on said central clutch member, a serrated ring secured to said sprocket wheel, a second ringshaped member having companion serrations, and bolts connecting said second ringshaped member with said central clutch member, said bolts having springs thereon engaging said second ring-shaped member, a spindle extending from one of said clutch members, means on said binder for supporting said clutch by means of said spindle, and means adapted to retain said spindle in said supporting means.

. 13. The combination with a binder having 7 a shaft, of a slip clutch thereon comprising a central mounting member engaging said shaft, a sprocket wheel disposed onsaid central mounting member, a serrated ring socured to said sprocket wheel, a spring pressed, ring-shaped member having companion serrations, and bolts connecting said latter ring member with said central mountingmember, said bolts having springs thereon engaging said secondringshaped memher, 'a spindle extending from said central mounting member, bearing means on said binder for supporting said'clutch and said shaft by means of said spindle, and means adapted to retain said spindle insaidbearing means. v

14. The combination with a binder having said spindle, and means comprising a collar adapted to retain said spindle in said bearing means.

15. The combination with a binder having a polygonal shaft, of a slip clutch thereon comprising coacting clutch engaging means, one of said means having a rotatable spindle with a polygonal axial boring having flared openings for accommodating angular displacements of said polygonal shaft, stationary means on said binder for supporting said clutch by means of said rotatable spindle, and means adapted to retain said rotatable spindle in said stationary means.

16. The combination with a binder having a shaft, of a slip clutch thereon comprising a central clutch member engaging said shaft, said central clutch member having a peripheral bearing surface and a peripheral flange extending therefrom, a sprocket wheel rotatably supported on said bearing surface and abutting said peripheral -flange, a serrated ring secured to said sprocket wheel, a second ring-shaped member having companion serrations, bolts connecting said second ringshaped member with said central clutch member, and spring means operatively connecting the second ring-shaped member and the sprocket wheel thru the instrumentality of said pair of serrations, and being further adapted to permit said second ring-shaped member to move axially of the'shaft in the event of an overload, While said sprocket means is at the same time held against axial movement by means of said peripheral flange.

17 The combination with a binder having a shaft, of a slip clutch thereon comprising a central clutch member adapted to drive said shaft, a sprocket wheel loosely mounted on said central clutch member and having a serrated ring connected therewith, a-second ring-shaped member having companion serrations coacting with the aforesaid serrated ring, bolts connecting said second ringshaped member with said central clutch member and having spring means thereon engaging said second, ring-shaped member, said sprocket wheel being disposed between said central clutch member and said coac ing serrations and being adapted to drive said shaft through the instrumentality of the serrations, bolts and said central clutch member.

18. In combination with a binder having a binder head, a power transmitting means for driving said binder head including a slip clutch for preventing transmission of overload torque to the blnder head, said binder head having telescopic driving connection with said clutch.

19. A binder including binder head mechanism shiftable relative to said binder, a main drive means for said binder, a second drive means for said binder head mechanism and shiftable therewith, and means supported in fixed relation to said binder and including a slip clutch connecting said second drive means with said main drive means, said second drive means being movable axially of said slip clutch.

20. The combination with an agricultural implement having a shaft, of a slip clutch on said shaft comprising coacting clutch engaging means, one of said means having a spindle cooperating with the shaft and extending therealong, means on said agricultural implement for supporting said clutch, and means adapted to retain said clutch in said supporting means.

21. The combination with an agricultural implement having a shaft, of a slip clutch on said shaft comprising coacting clutch engaging means, one of said means having a rotatable spindle cooperating with the shaft and extending therealong, stationary means on said agricultural implement for supporting said clutch by means of said rotatable spindle, said rotatable spindle being adapted to form a bearing support for the aforesaid shaft, and means adapted to retain said rotatable spindle in said stationary means.

22. The combination with an agricultural implement having a shaft shiftable axially relative to said implement, of a slip clutch for driving said shaft, and bearing means on said agricultural implement for rotatably supporting said clutch in fixed relation to said implement.

23. The combination with an agricultural implement having an axially shiftable shaft for driving implement mechanism, of a bearing mounted on said agricultural implement and a slip clutch for supporting said shiftable shaft journaled in said bearing and held against axial movement relative there to, said slip clutch comprising means for driving said shaft and for automatically interrupting the drive thereto when the operating mechanism fails to function.

2 1-. The combination with an agricultural implement having an angularly displaceable and axially shiftable shaft for driving implement parts, of fileans for supporting said shaft comprising a bearing mounted on said agricultural implement and means Ournaled in said bearing to support said shaft for angular displacement relative to said bearing and having driving connection with said shaft, said latter means comprising a slip clutch for automatically interrupting the drive to said shaft when said implement parts refuse to function.

25. The combination with an agricultural implement having axially shiftable means for driving implement parts, of means for supporting said shiftable means comprising a bearing and a supporting means for said .shiftable means journaled in said bearing and held against movement axially thereo said supporting means having driving conneotion With said shiftable means and comprising means for interrupting the drive to said shiftable means if and when said implement parts refuse to function.

26. The combination with an agricultural implement having axially shiftable means for driving implement parts, of a bearing fixedly mounted on said implement, said shiftable means extending through said bearing and in spaced relation thereto, and journal means interposed between said bearing and said shiftable means for rotatably and slidably supporting said shiftable means, said journal means comprising means for driving said shiftable means and for automatically interrupting the drive thereto if and when said implement parts refuse to function.

In witness whereof, we hereunto subscribe our names this 16th day of October, 1929.

LOUIS A. PARADISE. ELLSWORTH T. JOHNSON. 

